Please solve the attachment!!
Answers
Answer:
3 ka d
5 ka a
6 ka a
Step-by-step explanation:
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Answer:
1.b
2.c
3.b
4.a
5.a
6.c
7.b
Step-by-step explanation:
1.
Common Factor repeatedly occurs in each term.
2.The process of finding the factors of a polynomial is Factoring or Factorization.
3.Given that
10x²-20x³
=> 10×x² - 2×10×x×x²
=> 10×x²(1-2x)
=>10x²(1-2x)
The greatest common factor is 10x²
4.Given that
4ab⁴+16a²b²-32a³b
=> 4ab( b³+4ab-8a²)
5.x²-49
=> x²-7²
It is in the form of a²-b²
Where, a = x and b = 7
we know that
(a+b)(a-b) = a²-b²
=> x²-7²
=> (x+7)(x-7)
=> x²-49 = (x+7)(x-7)
6.Given that
x²-9x+20
=> x²-4x-5x+20
=> x(x-4)-5(x-4)
=> (x-4)(x-5)
The other factor is (x-4)
7.Given that
Area of a rectangle = (x²-6x+16) cm²
Breadth of the rectangle = (x-8) cm
Let the length be l cm
We know that
Area of a rectangle = length × breadth
=> x²-6x+16 = l×(x-8)
This is the correct working equation for the problem to find the value of the length of the rectangle.